Intervertebral DiscIntervertebral Disc DegenerationIntervertebral Disc DisplacementSpinal DiseasesLumbar VertebraeSpinal CordSpinal OsteophytosisFibrocartilageSpinal Cord InjuriesRetinal DegenerationMacular DegenerationNerve DegenerationSpinal FusionCollagen Type IXMagnetic Resonance ImagingSpinal StenosisCervical VertebraeSpondylolisthesisLow Back PainWallerian DegenerationDiskectomySacrumLumbosacral RegionLordosisAggrecansThoracic VertebraeSpineGrowth Differentiation Factor 5Spinal Cord DiseasesWeight-BearingInjections, SpinalDisease Models, AnimalScoliosisBack PainSpinal NervesLaminectomySpinal Nerve RootsAnesthesia, SpinalSpinal CanalSpondylosisBiomechanical PhenomenaSpinal Cord CompressionSpinal Cord NeoplasmsExtracellular Matrix ProteinsRadiographyProteoglycansBack InjuriesZygapophyseal JointSpinal FracturesSpondylolysisSpinal NeoplasmsAgingCollagen Type IIRange of Motion, ArticularCadaverSclerosisOsteoarthritisFrontotemporal Lobar DegenerationWet Macular DegenerationMatrix Metalloproteinase 3Compressive StrengthProstheses and ImplantsTemporomandibular Joint DiscNotochordImmunohistochemistryMuscular Atrophy, SpinalBone ScrewsSpinal InjuriesDisease ProgressionRats, Sprague-DawleyMotor NeuronsImaginal DiscsPhotoreceptor Cells, VertebrateInternal FixatorsGanglia, SpinalAxonsRetinaExtracellular MatrixTotal Disc ReplacementPain MeasurementArthrographyCollagen Type XTreatment OutcomeGlycosaminoglycansFinite Element AnalysisElectroretinographySpinal Cord IschemiaRegenerationObserver VariationJoint InstabilityStress, MechanicalCells, CulturedMatrix Metalloproteinase 13Needlestick InjuriesRetrospective StudiesGenetic Predisposition to DiseaseRetrograde DegenerationChondrocytesMatrix MetalloproteinasesCartilage